Concrete Testing Standards

What is the ASTM standard for the slump test of concrete?

• ASTM C231

• ASTM C173

• ASTM C1064

• ASTM C143

Which method is NOT used for determining the air content of concrete according to the provided information?

• Pressure Method

• Volumetric Method

• Density Method

What does the Slump Test measure in the context of concrete mixture?

• Compressive strength

• Workability

• Thermal resistance

• Drying time

What aspect of workability does the Slump Test specifically assess?

• Degree of "wetness"

• Setting time

• Water-cement ratio

• Air content

What is measured to determine the air content of the concrete?

• The amount of water

• The amount of cement

• The amount of entrained or entrapped air

• The amount of aggregates

What is the total weight of the materials used in the yield calculation example?

• 265 lbs

• 4042 lbs

• 149.2 lbs

• 27.1 cubic feet

What size of concrete cylinders are prepared for testing the strength of the concrete mixture?

• 5-inch x 10-inch

• 6-inch x 12-inch

• 4-inch x 6-inch

• 3-inch x 9-inch

At what intervals is the strength of the concrete mixture tested using the cylinders?

• 1, 7, and 14 days

• 3, 7, and 21 days

• 3, 7, and 28 days

• 2, 5, and 10 days

What is an alternative size of cylinder that may be used for compressive strength testing?

• 5-inch x 10-inch

• 6-inch x 12-inch

• 4-inch x 8-inch

• 3-inch x 9-inch

What is included in the specification for compressive strength?

• The maximum strength at 28 days

• The minimum strength at 7 days

• The compressive strength at 28 days

• The tensile strength at 14 days